How to get http user!

[Former Member]

Hi all,

I just need to get the http user logged using e.g. the request object (no portal user or R3 user, only the http user currently logged) from a WD.

This is very urgent, I hope in your help.

Vito Palasciano

[former_member182372 · Accepted solution]

Hi Vito,

to get IUser from servlet use:

com.sap.security.api.IUser sapUser = com.sap.security.api.UMFactory.getAuthenticator().forceLoggedInUser(request, response);

from WD:

IWDClientUser wdUser = WDClientUser.getCurrentUser();
IUser user = wdUser.getSAPUser();

Best regards, Maksim Rashchynski.

[Former Member · Accepted solution]

from WD:

IWDClientUser wdUser = WDClientUser.getCurrentUser();

IUser user = wdUser.getSAPUser();

Maksin,

are U sure this get the http user? In this case, what is the library to import in order to solve "IUser"?

Thanks a lot.

Vito P.

[former_member182372 · Accepted solution]

Hi Vito,

Don`t really understand what do you mean - "http user". If your application is running under WAS and is available only for authenticated users, you are dealing with UME user (IUser).

IUser is located (for example) here "C:\Program Files\SAP\JDT\eclipse\plugins\com.sap.security\lib\com.sap.security.api.jar"

Best regards, Maksim Rashchynski.

[Former Member · Accepted solution]

When an user open a page (that a generate with WD)usually insert a login (http user) and a password. I want to get this login (your code get the user data from SAP Portal, and I haven't a SAP portal, in fact it catch an exception), I just want to take the login with which the user access the page.... e.g. "user", "administrator", etc. etc.

I hope this help to clarify the problem. I hope in a solution. Thanks.

Vito P.

[former_member182372 · Accepted solution]

Hi Vito,

This code is for using inside WD (views, controlers etc.), not for EP. What kind of exception do you have? Is your WD application is having authentication.mode=true?

Best regards, Maksim Rashchynski.

[Former Member · Accepted solution]

<b>Here the exception:</b>

java.lang.NullPointerException
	at com.sap.givaudanhome.comp.HomeView.wdDoInit(HomeView.java:106)
	at com.sap.givaudanhome.comp.wdp.InternalHomeView.wdDoInit(InternalHomeView.java:115)
	at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.doInit(DelegatingView.java:61)
	at com.sap.tc.webdynpro.progmodel.controller.Controller.initController(Controller.java:215)
	at com.sap.tc.webdynpro.progmodel.view.View.initController(View.java:274)
	at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:200)
	at com.sap.tc.webdynpro.progmodel.view.ViewManager.getView(ViewManager.java:540)
	at com.sap.tc.webdynpro.progmodel.view.ViewManager.bindRoot(ViewManager.java:422)
	at com.sap.tc.webdynpro.progmodel.view.ViewManager.init(ViewManager.java:130)
	at com.sap.tc.webdynpro.progmodel.view.InterfaceView.initController(InterfaceView.java:41)
	at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:200)
	at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.displayToplevelComponent(ClientComponent.java:134)
	at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.init(ClientApplication.java:392)
	at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:608)
	at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:59)
	at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:248)
	at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doWebDynproProcessing(DispatcherServlet.java:154)
	at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:116)
	at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doGet(DispatcherServlet.java:48)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
	at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:390)
	at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:264)
	at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:347)
	at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:325)
	at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:887)
	at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:241)
	at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92)
	at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148)
	at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
	at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
	at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
	at java.security.AccessController.doPrivileged(Native Method)
	at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:95)
	at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:159)

<b>I tried to use this:
String loggedInUserName=System.getProperty("user.name");
but this get the wrong information!</b>

How to get the login user? I thinked it was more easy!

Thanks.

[former_member182372 · Accepted solution]

Hi Vito,

Seems like you application is not having authentication.mode=true and

WDClientUser.getCurrentUser()

returns null in this case and

IUser user = wdUser.getSAPUser();

causes NPE.

Best regards, Maksim Rashchynski.

[Former Member · Accepted solution]

In thinh that there is a NPE because I haven't a SAP portal. The code try to retrieve the user from SAP Portal and it doesn't find it!

In fact, i want to get the code from the user login.

Thanks.

Vito P.

[former_member182372 · Accepted solution]

Just check whether authentication.mode property of your WD application is set to true. If it is not - set it, rebuild, redeploy and try again. This piece of code is having absolutely nothing to do with EP.

[Former Member · Accepted solution]

Where exactly I find the authentication.mode property?

Thanks, Vito

[Former Member · Accepted solution]

Hi,

this will get you the plain HTML-user, if you are in a Servlet, StrutsAction, etc. :

 String userId = request.getRemoteUser();

From there you can take the userId and get the SAP-user data with UME-api, e.g.:

 IUser iuser = userFactory.getUserByUniqueName(userId);

regards, Astrid

[Former Member · Accepted solution]

request cannot be resolved, userFactory cannot b resolved... in my Web Dynpro

Where I can find the needed JARs? And is possible to use request object into a WD?

Thanks

Vito

[Former Member · Accepted solution]

In SAP documentation

http://help.sap.com/saphelp_nw04/helpdata/en/80/45da9619d24b61bb869c31ef3b780a/frameset.htm

I read that it's possible to get the user data with this:

IUserFactory userFactory= UMFactory.getUserFactory();
IUser myUser = userFactory.getUser(request.getUser().getUserId());

The problem is that in the Web Dynpro, <u>the request object cannot be resolved</u>. Any ideas?

It' s very important to solve this issue. Thanks in advanced.

Vito

[former_member182372 · Accepted solution]

Hi Vito,

How to set authentication.mode property:

1) Open your WD application

2) Go to Application properties

3) click "new". click browse in popup. select "authentication". select "true in "value" dropdown.

4) save metadata.

Best regards, Maksim Rashchynski.

[Former Member · Accepted solution]

Hi Maksim,

sorry, I'm using NWDS...right click on WD projects and I select "properties". But I don't see "New".

Could you explain me in more details? Thanks.

Vito

[former_member182372 · Accepted solution]

Open your WD application:

1) expand your WD project

2) expand "Web Dynpro". expand "Applications"

3) select application. double click on it.

4) follow previous instructions.

[Former Member · Accepted solution]

Thanks Maksim, U're great. Points awarded

I have just another question. I inserted a logoff button in my page in order to logoff the system. Do you known how I can log off?

Thanks,

Vito P.

[former_member182372 · Accepted solution]

Hi Vito,

There are couple of approaches:

Best regards, Maksim Rashchynski.

[Former Member · Accepted solution]

Maksim,

your links have been very helpful, problem solved. I would like to give you others points but forum seems doesn't permit it to me.

However thank you very much.

Bye, Vito

[former_member182372 · Accepted solution]

Hi Vito,

To be able to assign points for resolved topic you need to make it not resolved, assign points and mark it as resolved again ;-).

Best regards, Maksim Rashchynski.

[Former Member · Accepted solution]

ok, but I don't see the button "not resolved" in this post! Uhmmmm....

Vito