AW: [opencms-dev] Real Client IP address in Open CMS

Mark Miller mark.miller at hema.ch
Tue Aug 19 11:16:00 CEST 2003


1. Make a new JSP page

2. Copy in the following code (without the codebegin, codeend lines !)

CODEBEGIN-----------------------------------------

<%@ page import="com.opencms.flex.jsp.*" %>
<% 
  // Create a JSP action element
  com.opencms.flex.jsp.CmsJspActionElement cms = new CmsJspActionElement(pageContext, request, response);

  HttpServletRequest req = (HttpServletRequest)cms.getRequestContext().getRequest().getOriginalRequest();

  String ip=req.getRemoteAddr();

  out.println(ip);
%>

----------------------------------------- CODEEND

3. Save the page

4. Open the page

any other info on the HttpServletRequest interface can be found at http://java.sun.com/j2ee/1.4/docs/api/javax/servlet/http/HttpServletRequest.html




-----Ursprüngliche Nachricht-----
Von: opencms-dev-admin at opencms.org [mailto:opencms-dev-admin at opencms.org] Im Auftrag von Peter Hagl
Gesendet: 19 August 2003 09:07
An: opencms-dev at opencms.org
Betreff: [opencms-dev] Real Client IP address in Open CMS

DearUsers

The problem is that I want to get the real IP address of the client. Not
even 127.0.0.1. This Ip address is the localhost.
But I want to get 240.250.4.125. How can I find out the real IP address of
the client in OpenCms.
Please help me and send me an example code.

Peter 
 



> Why not just use the HttpServletRequest object that you are passing to
> CmsJspActionElement in the first place?
> 
> E.g. "CmsJspActionElement cms = new CmsJspActionElement(pageContext,
> request, response);" -- the object 'request' is a HttpServletRequest
> object, is it not?
> 
> On Mon, 2003-08-18 at 02:57, Peter Hagl wrote:
> > Dear Users
> > 
> > My latest tried code gives the following errors. Can you help me? What
> is
> > wrong?
> > 
> > Your's
> > 
> > Peter
> > 
> > <%@ page import="java.util.*,javax.servlet.*,com.opencms.flex.jsp.*" %>
> <%
> > 
> > CmsJspActionElement cms = new CmsJspActionElement(pageContext, request,
> > response);
> > 
> > HttpServletRequest req
> > =(HttpServletRequest)cmsobject.getRequestContext().getRequest().getOrig
> inalR
> > equest();
> > String ip=req.getRemoteAddr();
> > 
> > 
> > out.println("<h3>A simple sample
> > navigation</h3>");
> > out.println(""+ip);
> > 
> > %>
> > 
> >
> -------------------------------------------------------------------------
> ------------------------
> > Root cause:
> > org.apache.jasper.JasperException: Unable to compile class for JSP
> > 
> > An error occurred at line: -1 in the jsp file: null
> > 
> > Generated servlet error:
> >     [javac] Since fork is true, ignoring compiler setting.
> >     [javac] Compiling 1 source file
> >     [javac] Since fork is true, ignoring compiler setting.
> >     [javac] D:\Tomcat
> >
> 4.1\work\Standalone\localhost\opencms\WEB-INF\jsp\offline\system\modules\
> Mee
> > tingroom\elements\tt_jsp.java:48: cannot resolve symbol
> >     [javac] symbol  : variable cmsobject
> >     [javac] location: class org.apache.jsp.tt_jsp
> >     [javac] HttpServletRequest req
> > =(HttpServletRequest)cmsobject.getRequestContext().getRequest().getOrig
> inalR
> > equest();
> >     [javac]                                             ^
> >     [javac] 1
> > error
> > 
> >
> -------------------------------------------------------------------------
> ----------------------------------------------------------------
> > 
> > 
> > 
> > 
> > 
> > > When you get a resource loader error, there is usually a detailed
> > > explanation a but further down telling you which line of code and at
> > > which position and in which file the app is in error.
> > > 
> > > You need to try a little debugging, I don’t know if your err
> or is 
> > > simply
> > > >from copy paste, but for example, you have missed a semi-colon in
> your
> > > first line of code.
> > > 
> > > You should only need to scroll 2 or 3 lines down to see the error
> > > report, or you can copy the whole error report to notepad or any
> editor
> > > for easier viewing.
> > > 
> > > Happy debugging,
> > > 
> > > mark
> > > 
> > > -----Ursprüngliche Nachricht-----
> > > Von: opencms-dev-admin at opencms.org
> > > [mailto:opencms-dev-admin at opencms.org] Im Auftrag von Peter Hagl
> > > Gesendet: 18 August 2003 10:25
> > > An: opencms-dev at opencms.org
> > > Betreff: Re: [opencms-dev] Real Client IP address in Open CMS
> > > 
> > > Hi Achim
> > > 
> > > Can you help me. How can I built an API into OpenCMS. Can you please
> > > send me
> > > a hole example code that is running.
> > > 
> > > I have tried so much, but nothing works: 
> > > 
> > > e.g.
> > > ObjectInputStream inStream = new
> > > ObjectInputStream(request.getInputStream());
> > > String myRequestObject = (String)inStream.readObject();
> > > 
> > > That' s why I need a hole example which includes all definitions like
> > > libaries, JSP and so on. Because I get every time errors like 
> > > Recource loader errors and I don't know if it is from the environment
> o
> r
> > > >from my code. Please send me an code example which I can just pick
> out
> > > with copy
> > > and paste and that is working.
> > > 
> > > That will be really nice from you.
> > > 
> > > Thank' s a lot
> > > 
> > > Peter 
> > > 
> > > 
> > > > Hi Peter,
> > > > 
> > > > this is nothing that belongs Opencms, this belongs to the Sun J2EE
> > > API.
> > > > 
> > > > There you have a Object, called Request. This object brings all
> > > Enviroment
> > > > variables from the Client. There you can do something like that:
> > > > String sIpadress = myRequestObject.REMOTE_ADDR;
> > > > 
> > > > Hope this helps
> > > > 
> > > > Achim
> > > > 
> > > > > I have read the email "real client ip adress" in OpenCms but I
> have
> > > not
> > > > > understood how I can use the Request Object and how I can read out
> > > the
> > > > > REMOTE_ADDR. Can anyone send me an example  about that. I' m a
> > > newcomer
> > > > > of OpenCMS. I don' t know anything about the Request Object and
> the
> > > > > REMOTE_ADDR.
> > > > >
> > > > > Any help is appreciated. Thank you very much for your support
> > > > >
> > > > > Best regards
> > > > >
> > > > > Peter
> > > > >
> > > > > --
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> > > > > _______________________________________________
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> pleas
> e
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> > > > 
> > > > 
> > > > 
> > > > _______________________________________________
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> > > 
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> -- 
> M Butcher <mbutcher at grcomputing.net>
> _______________________________________________
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