Getting a client username

Is it possible to have a jsp retrieve a clients username automatically (much like the java call System.getProperty("user.name"))?
I know that I can use cookies for everything but my boss doesn't want to ever make a user log into the system. We are on a closed network so security isn't a major concern.
Once I have the password, the JavaBean will handle retrieving the user password from a system file on the server. I just need to be able to get the username of the client machine.

You'll need the latest JAAS.
Every client will need to have at least the Java1.3 plugin running.
http://java.sun.com/j2se/1.4.1/docs/guide/plugin/developer_guide/using_tags.html
You'll write an applet and the applet will need to be signed. Not as hard as it sounds but I don't have the link.
Here is the applet code:
import java.applet.*;
public class ntApplet extends Applet {
private String userName = "NONE";
public void init() {
      System.out.println("INIT");
      try {
           com.sun.security.auth.module.NTSystem ntSystem = new com.sun.security.auth.module.NTSystem();
           userName = ntSystem.getName();
           } catch (Exception e) { System.out.println("Error : " + e + "\n"); }
      System.out.println(">>>>" + userName + "<<<");
     }//End Init
public String getUserName() { return this.userName; }
}//End Class<P>
Here is some sample HTML:
<html>
<head></head>
<body onLoad="getName()" >
HERE IS SOME TEXT BEFORE THE APPLET <P>
<form name="form1">
<input type=text name="name" value="XXXXXXXX">
<button type="button" class="stdButton" onClick="getName()"><b>Clear</b></button>
</form>
X<applet
codebase = "."
code = "ntApplet.class"
archive="ntApplet.jar"
name = "ntApplet"
width = "1"
height = "1"
hspace = "0"
vspace = "0" MAYSCRIPT></applet>X
<P>
HERE IS SOME TEXT AFTER THE APPLET
<P>
</body>
<html>
<Script Language="JavaScript">
function getName() { document.form1.name.value=document.ntApplet.getUserName(); }
</Script>

Similar Messages

How to get CLIENT Username

Hi Experts,
I have a problem in retrieving my client's computer name and its username using windows api..
Coz my program is using JNI so for the windowsAPI i used GetUserName and Get ComputerName --> It gives me the username and the computer name of the server..
Any idea how to get another (computer username and its computer name PASSWORD IF POSSIBLE) that logon to my server.
Any suggestion will be highly appreciated..
Thank you
Suwandy

Any idea how to get another (computer username and its
computer name PASSWORD IF POSSIBLE) that logon to my
server.
High hopes
What are your clients?
Java,jsp,html or are they servlets
-Regards
Manikantan

Get client username

hello can u help me how to retrieve the client username.don't want to use System.getProperty(user,name) becoz this gives me the user of the server. thks

You can only get the client's username if the client chooses to make it available to you.
If you know the client is going to be using an NT Domain account or a similar package, you can get it via JNDI. Considering that I can log into my Windows 2000 Pro computer without setting my NT Domain account, I think you should just ask the client for a username and password.

Getting the NT UserName

I have various posting on NT authentication, I am looking for getting the client's username from NT who is accessing my server through HTTP. Is this possible, if so what class i should use in java.security package.
I will do the authentication by comparing this username with my list of users in DB.

The answer is simple: You cant.
You can enforce your clients sending their user name in the HTTP session by using servlets or JSP, but this requires that the client browser/application sends the user name in the HTTP header or servlet call.
In short terms:
There is no direct connection between the NT user name and the HTTP request on your web server.
Oliver

GSS-API How to get the client-to-service ticket

In Kerberos when requesting services, the client sends the following two messages to the TGS: A composed message of the Ticket-Granting Ticket and the ID of the requested serviceand authenticator (which is composed of the client ID and the timestamp), all encrypted using the client/TGS session key.
Then upon receiving these messages the TGS sends the followings to the client:
A: Client-to-server ticket (which includes the client ID, client network address, validity period and Client/server session key) encrypted using the service's secret key.
B: Client/server session key encrypted with the client/TGS session key.
Now I'm wondering how to obtain A and B throught the kerberos login in GSS-API . I have the following code that I use to request a kerberized service but it returns only a KerberosTicket in PrivateCredentialsSet for the Subject. A sessionKey can also be obtained form this KerberosTicket ! Which session key is this ? the session key B described above? and Where to get the Client-to-server ticket (A) described above ?
Thanks for any help !
Alex
lc = new LoginContext("login-client", new TextCallbackHandler());
lc.login();
mysubject = lc.getSubject();
java.util.Set principals = lc.getSubject().getPrincipals();
java.util.Iterator iterador = principals.iterator();
if (iterador.hasNext()){
KerberosPrincipal principal = (KerberosPrincipal) iterador.next();
clientName =principal.getName();
PrivilegedAction generateServiceTicket = new ClientAction(clientName,"[email protected]");
Subject.doAs(mysubject, generateServiceTicket);
Set prvCredentials = lc.getSubject().getPrivateCredentials();
for (Iterator i = prvCredentials.iterator(); i.hasNext(); j++) {
KerberosTicket ticket = (KerberosTicket) i.next();
prvKrbCrds = (KerberosTicket[]) mysubject.getPrivateCredentials().toArray(new KerberosTicket[0]);
public Object run() {
try{
GSSManager manager = GSSManager.getInstance();
Oid krb5Mechanism = new Oid("1.2.840.113554.1.2.2");
Oid krb5PrincipalNameType = new Oid("1.2.840.113554.1.2.2.1");
GSSName userName = manager.createName(pn,GSSName.NT_USER_NAME);
GSSCredential cred = manager.createCredential(usr,
GSSCredential.DEFAULT_LIFETIME,
krb5Mechanism,
GSSCredential.INITIATE_ONLY);
GSSName peerName = manager.createName(servicename,
GSSName.NT_HOSTBASED_SERVICE, krb5Mechanism);
GSSContext setContext = manager.createContext(peerName, krb5Mechanism, cred,
GSSContext.DEFAULT_LIFETIME);
setContext.requestInteg(false);
setContext.requestConf(false);
byte[] inputBuf = new byte[0];
byte[] tkt = setContext.initSecContext(inputBuf, 0, 0);
}catch(GSSException gsse){
gsse.printStackTrace();
}

In Kerberos when requesting services, the client sends the following two messages to the TGS: A composed message of the Ticket-Granting Ticket and the ID of the requested serviceand authenticator (which is composed of the client ID and the timestamp), all encrypted using the client/TGS session key.
Then upon receiving these messages the TGS sends the followings to the client:
A: Client-to-server ticket (which includes the client ID, client network address, validity period and Client/server session key) encrypted using the service's secret key.
B: Client/server session key encrypted with the client/TGS session key.
Now I'm wondering how to obtain A and B throught the kerberos login in GSS-API . I have the following code that I use to request a kerberized service but it returns only a KerberosTicket in PrivateCredentialsSet for the Subject. A sessionKey can also be obtained form this KerberosTicket ! Which session key is this ? the session key B described above? and Where to get the Client-to-server ticket (A) described above ?
Thanks for any help !
Alex
lc = new LoginContext("login-client", new TextCallbackHandler());
lc.login();
mysubject = lc.getSubject();
java.util.Set principals = lc.getSubject().getPrincipals();
java.util.Iterator iterador = principals.iterator();
if (iterador.hasNext()){
KerberosPrincipal principal = (KerberosPrincipal) iterador.next();
clientName =principal.getName();
PrivilegedAction generateServiceTicket = new ClientAction(clientName,"[email protected]");
Subject.doAs(mysubject, generateServiceTicket);
Set prvCredentials = lc.getSubject().getPrivateCredentials();
for (Iterator i = prvCredentials.iterator(); i.hasNext(); j++) {
KerberosTicket ticket = (KerberosTicket) i.next();
prvKrbCrds = (KerberosTicket[]) mysubject.getPrivateCredentials().toArray(new KerberosTicket[0]);
public Object run() {
try{
GSSManager manager = GSSManager.getInstance();
Oid krb5Mechanism = new Oid("1.2.840.113554.1.2.2");
Oid krb5PrincipalNameType = new Oid("1.2.840.113554.1.2.2.1");
GSSName userName = manager.createName(pn,GSSName.NT_USER_NAME);
GSSCredential cred = manager.createCredential(usr,
GSSCredential.DEFAULT_LIFETIME,
krb5Mechanism,
GSSCredential.INITIATE_ONLY);
GSSName peerName = manager.createName(servicename,
GSSName.NT_HOSTBASED_SERVICE, krb5Mechanism);
GSSContext setContext = manager.createContext(peerName, krb5Mechanism, cred,
GSSContext.DEFAULT_LIFETIME);
setContext.requestInteg(false);
setContext.requestConf(false);
byte[] inputBuf = new byte[0];
byte[] tkt = setContext.initSecContext(inputBuf, 0, 0);
}catch(GSSException gsse){
gsse.printStackTrace();
}

My iphone 4s is saying "cannot get mail" The username or password for "Btinternet" is incorrect

My iphone 4s is saying "cannot get mail" The username or password is incorrect.
I did reset my password yesterday on my main computer but tried on my iphone and now can't get mail ?

Hi Cherie,
I had EXACTLY the same problem for more than two weeks, that was NOT solved by speaking to BT 'Tech Support' - they kept saying that the problem was the fault of Apple - untill I finally got some help from them today (Mon 7th Oct).
The error message I got - despite ALL settings on my iPhone(5) and iPad(4) being absolutely correct - was this:
'Cannot Send Mail', 'The username or password for SMTP: ***********@mail.btinternet.com is incorrect'
The only solution I got - eventually - from BT is to delete the above account fro the device and 're-install' it again, but THIS time use the 'Yahoo' option from the list of choices rather than 'Other'.
When I did this and entered the relevant Name, E-Mail Address, Password, and Description (you can call the account whatever you like), I selected 'next', then I got the word 'Verifying.......' appear after a few seconds, and then I saw the four 'blue tick marks' appear next to my entries.
These 'blue tick marks' confirm the verification that your details are correct.
The next time you open your e-mail client on your iPhone or iPad you shoud see your ****@btinternet.com e-mail account in the list of e-mail accounts on your phone (if you have more than one) with a Yahoo icon next to whatever name you chose to call it. If you already have a Yahoo! account (like me) it is probably a good idea to call the 'BTYahoo' account, BT or something, rather than keep the default 'Yahoo' name otherwise you will have two with the same name in your accounts list.
You SHOULD eventually get back ALL the e-mails that were previously in your inbox, as well as some 'extra' folders that you probably did not have when you first set up the account on your iOS device.
That is what happened when I reinstalled my account, so I hope this works for you.
Bob

The Command Get-ADUser -Identity username -Properties * No Longer Works Due to a Bug in PowerShell 4 and Win8-1 Pro

The 'Command Get-ADUser -Identity <username> -Properties *' No Longer Works Due to a Bug in PowerShell 4 and Win8-1 Pro
It produces the following error:
Get-ADUser : One or more properties are invalid.
Parameter name: msDS-AssignedAuthNPolicy
At line:1 char:1
+ Get-ADUser -Identity ********** -Properties *
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (**********:ADUser) [Get-ADUser], ArgumentException
+ FullyQualifiedErrorId : ActiveDirectoryCmdlet:System.ArgumentException,Microsoft.ActiveDirectory.Management.Commands.GetADUser
This is already documented in these forums:
1. http://social.technet.microsoft.com/Forums/systemcenter/en-US/1bf9568e-6adc-495d-a37c-48877f86985a/powershell-40-and-the-activedirectory-ps-module?forum=w81previtpro
2. https://connect.microsoft.com/PowerShell/feedback/details/806452/windows-8-1-powershell-4-0-get-adcomputer-properties-bug
Unfortunately, in typical style, Microsoft have archived number 1 without bothering to respond with advice. Can someone in Microsoft please advise your customers here if this is being investigated and of any available workaround or fix ?
-- huddie "If you're not seeking help or offering it, you probably shouldn't be here."

Did you consider using one of the "workarounds" below to run an existing version of the AD Module for PowerShell under a specific PowerShell version:
a. #require -version 3.0 (in ps1 script)
b. powershell -version 3.0
Thank you for sharing with us if this helps.
Desmond, did you miss my reply below ? I still haven't heard back from you:
>> "Desmond,
>>
>> Thanks for your quick response.
>>
>> I'm running this just as a command, not in a script:
>>
>> Get-ADUser -Identity <username> -Properties *
>>
>> When I try to run powershell
-version 3.0 first, then run the above command, it still fails with the same error. When I then run Get-Host,
the version still shows as 4.0 so maybe there's more I need to do to launch a 3.0 host. Anyway, from what I've read it seems your command is more aimed at script compatibility.
>>
>> Can you help ?"
-- huddie "If you're not seeking help or offering it, you probably shouldn't be here."

Windows 8.1 will not get Forefront Client Updates from WSUS

Recently I noticed that my Windows 8.1 clients were not getting updates from WSUS 3.2. After some searching I found it was an issue with HTTPS and the solution was to disable HTTPS or enable TLS. So I enabled TLS on the Server 2008 R2 WSUS server
and that fixed the issue with my 8.1 clients not getting updates except for Forefront Endpoint Protection 2010. My SCCM server deploys the client fine but it is version 2.1 and normally the client and definition updates come from WSUS with the
latest client version being 4.5. However, my Windows 8.1 machines will not get the client updates even though they are automatically approved for all machines.
I am just wondering what else I can check or change to make sure my Windows 8.1 clients get the Forefront client updates as they should?? I am wondering if I manually install the 4.1 client update if it will take the client updates after that.
I only have about eight Windows 8.1 machines so if I have to do that by hand for now then I will and I think my organization will be moving to Server 2012 and SCCM 2012 this summer sometime.

I reread your post and have another suggestion. If your SCCM 2007 server is still deploying the old 2.1 FEP client version, then you should install the latest anti-malware platform update for the SCCM server so you can deploy it from there instead of WSUS:
http://support.microsoft.com/kb/2952678
http://blogs.msdn.com/b/minfangl/archive/2013/08/15/guidance-on-install-anti-malware-platform-updates-for-fep-2010-su1-and-scep-2012-sp1.aspx
Also, you may be affected by this:
"Anti-malware platform updates on MU will use special detection logic and applicability rules to make the anti-malware platform updates available only on computers with previous N-2 anti-malware platforms installed. For example, on April 8<sup>th</sup>,
anti-malware platform of version 4.5.x will be released on MU, and it will only be offered to computers where anti-malware platform version 4.3.x or 4.4.x is available. If a computer has FEP or SCEP client with version 4.1.x, it has to be upgraded to version
4.3.x first, then to the latest version (4.5.x). If a computer has FEP or SCEP client with version older than 4.1.x, because of the same N-2 rule, it has to be upgraded to 4.1.x first, then to 4.3.x, and then to the latest version (4.5.x). Required updates
will be kept on MU to ensure that this upgrade process is available for computers running older versions of the Microsoft anti-malware platform."
http://blogs.technet.com/b/configmgrteam/archive/2014/03/27/anti-malware-platform-updates-for-endpoint-protection-will-be-released-to-mu.aspx

How to get the client date and time ?

Dear Sirs...
Using jdeveloper 10.1.2.0
How can i get the client date and time using the HttpServletRequest ?
thanks for any help in advance
best regards

If your code is running on the client pc you can just create a new instance of the java.util.Date class. That class automatically defaults to the current time of the client machine. Otherwise if you're running the code on the server, you could insert/post the client date/time by adding its string representation as a parameter to the HTTP request object.
Ronald

How to get the client identity from the certificate at server side

hi, this is ravi kiran,
I am working on a project which requires, receiving a signed file from the client side and verify whether the file is signed by a valid certificate that is there in the servers keystore.
How can i get the client certificate at server side and check with the certificates already present in the servers keystore.
i have no idea how to do this
can any one help me
thanx in advance

Hi Ravi, did you get any answer to your question ?
I'm also after a similar problem, please share your solution, if you have any.

How to get the Portal Username to SAP Transaction IView ( ABAP cust repor )

Hi Experts,
We have an ABAP program that will be exposed in portal as SAP transaction IVIEW. However the username that is being displayed in the report is the username that is defined in SICF > SAP > BC > GUI > ITS > WEBGUI. I tried to remove the username and password defined, changed the procedure to Alternative Logon Procedure and deleted some logon procedure list retained Basic and SSO Authentication but we are getting DDIC username. We have successfully implemented SSO, and it works in Personal Information of Standard ESS. The following are configure in our portal:
1. We have set SSO ticket
2. We are using User Mapping for portal and ABAP System
3. Retain Basic and SSO authentication
what could be the cause why the program (iview) is still getting the user instead of Portal Username? How can we get the portal username for our abap customized report exposed in iview

Hi,
Make sure that the System you are using to connect to R3 has Log On Method and Authentication Ticket Type properties has SAP LOGON TKT as the value selected.
Path: System Administration --> System Configuration ---> Systems....
Regards,
SrinivaS

How to get the CLIENT OS USER NAME using Apex

Dear All,
I know there are many other posts (some of them are very old) discuss about this issue. But unfortunately most of the posts endup with NO PROPER ANSWER. But still I believe that tehre has to be some way to do this. So this is my requirement.
I am using custom authentication module and I want to get the CLIENT MACHINE OS USER NAME for that. But I do not want to do any authentication against the client user domain.
How can I get this?
* There are some other way to get this using VB Scripts. But thats not a real solution for this due to followings
01. User has to manually allow to run VB scripts. So if user dissable that then we canot get the required info
02. Its working only with specific browsers(Mainly in IE and also we can get that thing work after installing plugins to Firefox.). So this is also depends with the bvrowser and plugings.
What I want to do is to get this info using a common way which is not depends with the browser or any thirdparty plugins.
Thanks,
Alex

Its good that you did some searching in the forums before you posted the question.
Most modern browsers would consider what you require as a security/privacy issue and prevents such information from being transmitted available(easily). IE might let you pull out this using a VB script or activex control. Browser specific addons/extension could work but they need some kind of installation to start with. Java could be a way to do it with all browsers, but the end user still has to grant access before it can do any such thing.
Lets say you were able to pull out such information from an end user, what would be next, get his mail id from outlook ? , access his browsing history, steal credit card information or read cookies?
Add to that , what if the end user accesses it using any other OS(linux,macintosh or even a smartphone) ? what about windows vista and windows 7 OS's , are you going to write code to handle all those cases too ?
Here's a blog posting which explains using NTLM authentication with Apex(it still needs configuration from the end user)
What I want to do is to get this info using a common way which is not depends with the browser or any thirdparty plugins.I guess if this is the question, then the answer would have to be no. I don't think you will be able to find a method that passes this information from the client side without any modification/configuration at their side

I keep getting asked for username and password on both IMAP and Exchange when on 3G network but not Wifi!

We are having serious issues with one of our Google Apps accounts. We have done everything we can think of to get it to work properly on 3G but for some reason it continually asks for the user's password no matter how many times we enter it. However, it does work on WiFi!!
The iPhone says "Cannot get mail, the username or password for USERNAME is incorrect."
This happens on both Exchange and on IMAP accounts. We have deleted the accounts and set them up again several times but to no avail.
It is also worth noting that I have exactly the same settings on my identical iPhone and have no problems whatsoever so we think it may be something with the google configuration.
Please help!!

Try a system reset. It cures many ills and it's quick, easy and harmless...
Hold down the on/off switch and the Home button simultaneously until the screen blacks out or you see the Apple logo. Ignore the "Slide to power off" text if it appears. You will not lose any apps, data, music, movies, settings, etc.

Get the client IP address

Hello everybody, I'm a student new with java, I'm developing a little server application - running standalone, and I'm trying to get the client Ip address, have a look on my code snippet:
InetAddress fromcli;
while(true){
welcomeSKT.accept()
fromcli = welcomeSKT.getInetAddress();
System.out.println("The client Ip Address is: " + fromcli.getHostAddress() + '\n');
The sysout println returns the 0.0.0.0 that is the server address, mapped to more than one interface eg:(loopback and eth0) - But if with the getInetAddress() method I get the server address where is the difference with the getLocalHost()? - By the way, anyone has a suggestion to print out the client remote address.
Thank you in advance....
Jeppojeps
Edited by: jeppojeps on Mar 24, 2008 3:36 AM

Oh, sorry of course welcomeSKT is a ServerSocket, actually the snippet that I put is a part of the code, here below I put the complete program, in order to clarify my question, however I would like to know if it's possible to understand from the server side the client IP address, and if yes how...
Thank you in advance...
* THIS simple TCP server receives some numbers in input by the client and give back the sum - actually the exceptions are managed in a uncomplete way....but this is my first java program...be patient with me...
* @jeppojeps
* @0.1
import java.io.*;
import java.net.*;
public class ServerTCP
// instance variables - replace the example below with your own
public static void main(String[] args) throws Exception
String clientSentence;
String capitalized;
InetAddress fromcli;
String clientIp;
String portIp;
int z=0;
int port=0;
if (args.length == 0 ){
System.out.println("Usage: ServerTCP lport" + '\n');
System.exit(-1);
else
port = Integer.parseInt(args[0]);
if(port <= 1024) {
System.out.println("Remember dude, only root can use a portnumber < 1024" + '\n');
else{
ServerSocket welcomeSKT = new ServerSocket(port);
System.out.println("Server instance started:" + '\n');
while(true){
Socket connectionSocket = welcomeSKT.accept();
BufferedReader InfromClient = new BufferedReader (new
InputStreamReader(connectionSocket.getInputStream()));
DataOutputStream outToClient =
new DataOutputStream(connectionSocket.getOutputStream());
outToClient.writeBytes("Hello give me some numbers and I'll give you the sum" + '\n');
fromcli = welcomeSKT.getInetAddress();
System.out.println("The client Ip Address is: " + fromcli.getHostAddress() + '\n');
clientSentence = InfromClient.readLine();
for(int i = 0 ; i < clientSentence.length() ; i++) {
try {
Character c = new Character(clientSentence.charAt(i));
capitalized = c.toString();
int x = Integer.parseInt(capitalized);
System.out.println("Number digited from the client: " + x + '\n');
z+=x;
catch(NumberFormatException nfe) {
System.out.println("Text: " + clientSentence.charAt(i));
capitalized = Integer.toString(z);
outToClient.writeBytes("The sum of the given number is: " + capitalized + '\n');
welcomeSKT.close();
}

Get the client (caller) IP in a RESTFul web service resource

Hello,
How i can get the client (caller) IP inside a RESTFul web service resource?
Something like for SOAP Web Services
          MessageContext msgCtxt = wsCtxt.getMessageContext();
          HttpServletRequest req = (HttpServletRequest) msgCtxt.get(MessageContext.SERVLET_REQUEST);
          String clientIP = req.getRemoteAddr();
Thank You

1) Are you trying to create a RESTful web service in LabVIEW?
or
2) Are you wondering about creating a thin client to consume the web service?
A1) Web Services in LabVIEW
A2) LabVIEW WebUI Builder You can create a VI to act as a client for your web services, but not a thin client (i.e. running in the browser)
Chris
Certified LabVIEW Architect
Certified TestStand Architect

Getting a client username

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