Browser (user agent) detection in web dynpro abap

[jan_krohn]

Hi guys,

I've been looking for a way to capture the users' browser and os versions to store them into a table for a smoother support process. I've found a couple of solutions for WD Java, but nothing for ABAP.

So if you know anything about this, any help would be highly appreciated.

Jan

[Former Member]

Hi,

You can use the method GET_PLATFORM of class CL_GUI_FRONTEND_SERVICES to get OS version.

As for the browser, web-dynpro only supports IE, Firefox and Safari browser.

Will update you if I find a way to get browser name in ABAP.

-Manish

[thomas_jung]

Manish Kumar wrote:
Hi,
You can use the method GET_PLATFORM of class CL_GUI_FRONTEND_SERVICES to get OS version.
As for the browser, web-dynpro only supports IE, Firefox and Safari browser.
Will update you if I find a way to get browser name in ABAP.
-Manish

This is bad advice as you can't use CL_GUI_FRONTEND_SERVICES from Web Dynpro. This class uses the SAPGUI Control Framework, which of course won't be present in Web Dynpro ABAP. 

IF_WD_APPLICATION has some frontend information but mainly the remote IP Address and method GET_CLIENT_ENVIRONMENT (Portal, NWBC, etc - not Browser). More detailed information is captured by the WD Framework but not exposed up through the APIs.

[jan_krohn]

Dear Thomas,

That was very helpful already, thanks! Do you know where in the framework the info is captured? So I can write it to a memory id, and have it available in the API.

Thanks a lot!

Jan

[jan_krohn]

I think I found it, but must wil til Monday to test...

Function module HTTP_DISPATCH_REQUEST

http headers seem to be in c_server->request->get_header_field.

[Former Member]

Hi,

You can get the browser details from if_http_rquest`get_header_fields.

data cl type REF TO cl_http_request.
cl ?= wdr_task=>request.

CALL METHOD CL->IF_HTTP_ENTITY~GET_HEADER_FIELDS
   CHANGING
     FIELDS = fld.

But to get the instance of the HTTP REQUEST, you need to access the attributes of

WDR_TASK class.

But the problem is technically direct access to WDR_TASK is NOT supported.  You can read this help document about usage of the programming interfaces of Web Dynpro:

http://help.sap.com/saphelp_nw70ehp1/helpdata/en/64/be5b4150b38147e10000000a1550b0/frameset.htm

So may be if you can get the instance of HTTP REQUEST from some other

RUNTME API classes then you could succeed.

[jan_krohn]

Harshith,

Your reply pointed me in the right direction! The user agent can be picked up in methods EXECUTE_REQUEST and EXECUTE_REQUEST_FROM_MEMORY of class CL_HTTP_SERVER.

One of these two is always executed, so writing it to a memory id in both of them makes it available to all webdynpro applications.

It can be retrieved with the line

lv_useragent = server->request->get_header_field( 'user-agent').

Jan

[TusharShinde]

Hi,

You can try with below code, no need for storing anything in memory,

DATA: lo_http_request TYPE REF TO cl_http_request.

   DATA: lt_fields TYPE  tihttpnvp.

   lo_http_request ?= wdr_task=>request.

   lo_http_request->get_header_fields(
     CHANGING
       fields = lt_fields    " Header fields
   ).

Explanation - "request" attribute in Class "WDR_TASK" is a static attribute so you can directly access it without any indirect way to access, once you get the reference to CL_HTTP_REQUEST you can simply call method
get_header_field( ) or get_header_fields( ) to get all Header Data, parameter 'user-agent' contains the desired value.

I wrote the above code in WD View init() method.

Thank You.

Br.

Tushar Shinde

[Former Member]

hello ,

Could you please explain me how can we get the windows login id in webdynpro application.

DATA: lo_http_request TYPE REF TO cl_http_request.

    DATA: lt_fields TYPE  tihttpnvp.

    lo_http_request ?= wdr_task=>request.

    lo_http_request->get_header_fields(
      CHANGING
        fields = lt_fields    " Header fields
    ).

in lt_fileds, user_agent is not giving the my windows  login id.

it is giving : Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; InfoPath.2; .NET CLR 2.0.50727; .NET4.0C; .NET4.0E)

Could you please me how can I get the windows login id in webdynpro application.